General
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Target
Client-built.exe
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Size
3.1MB
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MD5
c17c8e13c3dc7a98d44e0927b74572d3
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SHA1
57667c85593eba2f5f64aacf7c871ebb92eb43e9
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SHA256
1824c462c940e3a6b0958dcbf2b44ac7eaf4b553830f17b6147a2dcc0c1e4308
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SHA512
8713a42b37dfeaf80aea7cbf3705c9bdc35fcd8034520c8fcf7404a2bf3112679a6af644dcdc7d32d56e0119592bf6ccfb1440a0e4d4415d055df50eecdb08cf
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SSDEEP
49152:3viI22SsaNYfdPBldt698dBcjH7DRJ6tbR3LoGddTHHB72eh2NT:3vv22SsaNYfdPBldt6+dBcjH7DRJ6/
Malware Config
Extracted
quasar
1.4.1
Test
130.61.85.156:4782
f822499b-2ed7-4085-8918-40b672602169
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encryption_key
A68C59AF5762E60F8695F80391FAC0D823B45431
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install_name
Client.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
Quasar Client Startup
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subdirectory
SubDir
Signatures
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Quasar family
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Quasar payload 1 IoCs
resource yara_rule sample family_quasar -
Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource Client-built.exe
Files
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Client-built.exe.exe windows:4 windows x86 arch:x86
f34d5f2d4577ed6d9ceec516c1f5a744
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
IMAGE_DLLCHARACTERISTICS_NO_SEH
IMAGE_DLLCHARACTERISTICS_TERMINAL_SERVER_AWARE
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_32BIT_MACHINE
Imports
mscoree
_CorExeMain
Sections
.text Size: 3.1MB - Virtual size: 3.1MB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rsrc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 512B - Virtual size: 12B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ